Babbitt box



i im Model.) l f W. LEATGH.

BABBITT'BOX. N0. 554,224. `]?fi,1 3911136(1 Feb. 4, 1895.

QR) wuQ/wo@ wwe/aow @cf VY' l l WILLIAM IEATOI'I, OF CANAL DOVER, OIIIO.

BABBITT Box.

SPECIFICATION forming part of Letters Patent No. 554,224, dated February 4, 1896.

Application iiled .Tune l 3, 1 89 5 To all whom t 11i/ay concern:

Be it known that I, WILLIAM Lnn'ron, a citizen of the United States, and a resident of Canal Dover, county of Tuscarawas, State of Ohio, have invented certain new and useful Improvements in Babbitt Boxes, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in Babbitt-metal boxes or other soft-metal bearings for car-boxes; and the objects of the invention are to reinforce the brittle metal and preventits breaking up when sudden strains or shocks are brought to bear upon it, such as are incident to street-railway service, and, further, to provide passages or tubes through the boxes for the free admission and discharge of liquid lubricants to the bearing,which shall also serve to retain a constant supply of lubricant and supply it to the bearing as fast as required.

My invention consists in. metallic strengthening material or netting intermingling with the brittle Babbitt metal and novel-arranged 4 continuous passages through the Babbitt from the exterior to the bearing-surface for liquid lubricant, as hereinafter described, shown in the drawings accompanying, and speciiically pointed out in the claims.

In the accompanying drawings, Figure lis a plan view of the bearing, the oilconveying passages being indicated in dotted lines. Fig. 2 is a vertical longitudinal section through oil passages and reservoir, the reinforcing material being shown in dotted lines. Fig. 3 is a perspective view partially broken away to show the construction of the parts.

In the views, l is the Babbitt-metal bear` ing which is adapted to be placed over the axle with the curved side down to support the weight of the car. Through this Babbitt metal is arranged the reinforcing material, which consists in metalliclstrands or netting 2, extending horizontally thro ugh the Babbitt from side to side.

In order to form an oil-reservoir within the box and improved passages through it to the curved bearing-surface, a metal tube or continuous passageway 3 is inserted or formed in the body of the metal, which is provided with narrow openings 4 on the upper side Serial No. 552,705. (No model.)

and near one end of the box, for the insertion of oil. This passage-way 3 leads from the openings downward a slight distance and thence horizontally through the box, thus forming a loop in the box near the end opposite to the openings 4.

In order to admit the oil in small quantities to the curved bearing-surface at the part whence it can be most readily distributed to the axle, small apertures 5 of considerable less diameter than the tube are drilled from the bearingsurface into the tube, through which the oil percolates on the bearings as fast as utilized, and the surface of the bearing is scored at 6 with grooves to assist in distributing the oil also. In the passages thus formed a great quantity of oil can be stored for lubricating the axle and supplied thereto as rapidly as required.

The metal tubing may serve as a reinforcement for the soft metal and the number of tubes may be increased at pleasure.

The metal comprising the reinforcing material and tubes is preferably brass, which presents a good bearing-`surface to the axle in case the metal of the bearing should wear away and expose the reinforcing metal to the friction of the axle.

In constructing the bearing described the tube and the reinforcing metal are first placed in the mold so as to occupy their proper positions and the molten Babbittis then poured over them until the mold is filled.

Having described my invention, what I claim as new, and desire to protect by Letters Patent, is

l. In combination with the Babbitt metal of a car-axle bearing, metallic reinforcements cast into the body of the same, consisting in tubes traversing the bearing, provided with outer inlet-openings, and passages leading from said tubes to the surface of the bearing, substantially as set forth.

2. In a soft and brittle metal bearing for car-axles, the combination, with the metal composing the bearing, of tough metal reinforcements therefor, cast therein, embracing continuous tubes provided with inlet andoutlet openings substantially as described.

WM. LEATCII.

Witnesses:

DA1/1.o A. Born, E. D. KALDENBAUGH.

IOO 

